Improvement in curtain-fixtures



2 Sheets-Sheet 1. I J. K; DAVISON. Curtain Fixtures.

Patented Feb. 4, 1879.

ya' www N.FE|'ERS. FHDTQUTHDGRAPHER. WASHINGTON. DA Cy 1 2 Sheets-Sheet 2;

J. K. DAVI-SON.

Curtain Fixtures. No. 211,890. Patented Feb. 4, 1879( 'FIGB NAFETERS, PHD'I'O-UTHDGRAPHER. WASHlNGTON, Dv C.

UNITED .STATES PATENT JOSEPH K. DAVISON, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN CURTAIN-FIXTURES.

Specification forming part of Letters Patent No. QILSSN), dated February 4, 1879; application filed July 11,1878.

To all 'whom it may concern:

Be it known that I, JOSEPH K. DAvIsoN, of the city and county of Philadelphia, in the State of Pennsylvania, have invented a new and useful Improvement in Curtain-Fixtures for Ventilation, of which the following is a speciiication My invention mainly consists in the combination of swinging bars with a curtainroller and a window-frame provided with eyebolts, on which the bars oscillate to vary the height of the curtain 5 springs adapted to press the bars from the window, and cords to retain the bars against the same 5 and a band for operating the curtain-roller, the band being doubled and passed through the eyes of said bolts, and thence down and around a hitching-knob, so that, the eyebolts being made the center of oscillation of both the band and the bars, the former is kept at a uniform tightness in all the positions the curtain-roller assumes when swung downward or upward, as hereinafter described.

In the accompanying drawings, Figure l is a front elevation, in isometrical perspective, of a window-frame, A, with a curtain and roller connected therewith, with my improved fixtures. Fig. 2 is a vertical section at the broken line of Fig. 1. Fig. 3, Sheet No. 2, is a front elevation, with the roller and curtain removed. Fig. 4 is an isometrical View of the swinging bars D and D and the stretcher J, made in a single piece. Fig. 5 is a like view of a bar, D, jointed at the middle.

Like letters of reference in all the ligures indicate the same parts. y

Referring to the drawings, Arepresents the upper part of a window-frame; B, the curtainroller, and C the curtain attached thereto. D D are swinging bars, which fit at their lower ends on the screw eyebolts E E, that are screwed into the jaws of the frame A. The

upper ends of the rods fit on the pivots a ca of the roller, which project from its end ttings F F. G is a band, which connects with an annular groove of the fitting F, and with the knob b, which is screwed into the jamb c, the lower part of the band being doubled and passed through the eye of the bolt E before connecting it with the knob. By thus connecting the band with the eyes of the bolts the latter become the points of oscillation for upward to within a short distance of the eyef bolts c and c1, and tied together. One strandis Vthen passed through the eye of the bolt c and connected with the swinging bar D, and the other strand is passed through the eye of the bolt c1, and thence through the eye of the bolt e2, at the left upper corner ofthe frame A, and Iconnected with the swinging bar D.

I I are springs, which are fastened to the jambs of the frame A by means of screws, and have their resilient ends bearing against the contiguous edges of the swinging bars D and D', the springs yielding to admit of the roller B being swung back into its upward position when the cord H is drawn downward and fastened to the knob b, as seen in Fig. 2. When the cord is unfastened the springs force the upper ends oi' the bars D and D from their vertical position until they rest upon stop-pins f, and thereby swing the roller B into the position seen in Fig. l to form au open space for ventilation.

As the upper part of the curtain lis thusv swung inward from the window, the lower part would also be brought with it unless some means should be used to hold it back. For this purpose I use the stretcher J, the ends of which are connected with the eyes of the screwbolts E E. The stretcher is represented as formed of twisted wire; but any other suitable material will answer the purpose as well.

The swinging bars D and D may be jointed in their middle, if desired, so as to admit of being folded up to occupy less space, or to increase the space for ventilation 5 and they may be pivotedto the jambs of the frameA, near its outeredge, to admit of the roller being dropped down, instead of being swung from the window when lambrequins or other curtains are used., so as to prevent the curtains being whereby the bolt is made the point of oseille- ,swung or dropped forward. If desired, the tion for both the band and bar, as and for the swinging bars D D and stretcher J may be purpose set forth.

made in a single piece, es shown in Fig. 4. 2. The combination of the springs I I with I claim es my inveutionthe swinging bars D D and frame A, sub- 1. The combination of the swinging bers D stantially es and for the purpose set forth.

Dl and band G with Jche roller B, eyebolts E E, springs I I, and cord H, the said bars being' JOSEPH K' DAVLSON' hung on Jche eyebolts, and the bend doubled Vitnesses: and passed through the eye of Jshe contiguous THOMAS J. BEWLEY,

bolt', and thence to and around the knob b, STEPHEN USTIGK. 

